Old Fashioned Peanut Brittle Recipe (2024)

By Rebecca Hubbell on | Updated | Rate Recipe

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Homemade Peanut Brittle is perfect for making and sharing around the holidays! A crunchy candy layer is loaded with roasted peanuts for a sweet and salty treat.

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Homemade Peanut Brittle is perfect for making and sharing around the holidays! A crunchy candy layer is loaded with roasted peanuts for a sweet and salty treat.

So you love making candy for the holidays? Try my English Butter Toffee and Crockpot Candy recipes!

Old Fashioned Peanut Brittle Recipe (2)

I love making this Peanut Brittle recipe in winter because it’s so nostalgic and fun to share.

Peanut Brittle Candy also makes a wonderful hostess gift. Just stash a handful or two in a tin or a mason jar and tie with a ribbon!

While Peanut Brittle only contains a handful of ingredients, following the process is key for the perfect texture. But as long as you use a candy thermometer for accuracy, this recipe turns out great!

Old Fashioned Peanut Brittle Recipe (3)

Table of Contents

Peanut Brittle Ingredients:

  • Granulated sugar – The base of this treat!
  • Light corn syrup – Reacting with the sugar, corn syrups helps create that crack-able texture.
  • Dry roasted peanuts – Deliciously salty to balance out the sweetness! You can also use raw Spanish peanuts.
  • Salt – To emphasize the flavor contrast.
  • Unsalted butter – I prefer using unsalted butter and adding my own salt so I can control exactly how much goes in.
  • Baking soda – The secret to making it brittle!
Old Fashioned Peanut Brittle Recipe (4)

How To Make Peanut Brittle:

  1. In a deep skillet, slowly cook sugar, corn syrup, and 1 cup of water on medium-high heat, stirring until the sugar dissolves.
  2. Bring to a boil, and continue cooking until the sugar mixture reaches the soft-ball stage on a candy thermometer (235 degrees F), about 10 minutes
  3. Add in the peanuts and salt. Cook until the temperature reaches 300 degrees (the hard crack stage), stirring constantly, about 10 more minutes until it’s a deep golden brown. (Pay attention to this part as the brittle will burn if cooked too long).
  4. Remove from heat and add in the butter and baking soda; stir to blend. The mixture will bubble up.
  5. Pour the brittle mixture onto the prepared cookie sheet and spread it out with a spatula and allow the brittle to cool for about 30 minutes until it’s cool to the touch.
  6. Once cooled completely, slide a spatula underneath to lift the brittle and break it into pieces. Store covered at room temperature.

RECIPE TIP: A candy thermometer is going to be necessary for this recipe! It will help ensure that your temperatures are accurate and you get perfect brittle instead of a soft or burnt mess.

Old Fashioned Peanut Brittle Recipe (5)

Frequently Asked Questions:

What does baking soda do?

It’s all chemistry!

Baking soda reacts with the other ingredients to create tiny air bubbles so it easily cracks. This prevents it from becoming a rock-solid hunk of sugar.

What temperature is the brittle stage?

Called the hard-crack stage, it should get to 300 to 310 degrees F to achieve the proper texture.

How long does it take to harden?

About 20 to 30 minutes.

Why is my brittle so hard?

See above — you may not have added enough baking soda!

How do you prevent it from sticking to the pan?

Use a generous amount of cooking spray and be sure to coat the sides of the pan as well. You can also use parchment paper or a silicone mat, but DON’T use wax paper, which will melt.

How long does peanut brittle last?

Store in an airtight container at room temperature, it should keep for 2 months!

Old Fashioned Peanut Brittle Recipe (6)

More Homemade Candy Recipes:

  • Crockpot Candy – Chocolate and almond bark are melted in the Crock-Pot with peanuts then harden into a crunchy treat.
  • Irish Potato Candy – Airy coconut balls coated in cinnamon look just like potatoes … perfect for Saint Patrick’s day!
  • Pretzel Turtles – Made with pretzels, pecans, and Rolos, you’ll want to keep popping ‘em.
  • Cookie Dough Truffles – A must for cookie dough fans!
  • Candied Lemon Slices – A beautiful, delicious garnish for drinks and desserts.

Peanut Brittle

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Old Fashioned Peanut Brittle Recipe (8)

5 from 2 votes

Peanut Brittle


Author Rebecca Hubbell

Course Dessert

Cuisine British

Prep Time 5 minutes minutes

Cook Time 25 minutes minutes

Cooling Time 30 minutes minutes

Total Time 1 hour hour

Homemade Peanut Brittle is perfect for making and sharing around the holidays! A crunchy candy layer is loaded with roasted peanuts for a sweet and salty treat.

Equipment

  • Deep skillet

  • Candy Thermometer

  • Baking Sheet

  • Spatula

Ingredients

Instructions

  • Prepare a large 17” rimmed cookie sheet by spraying it with a nonstick cooking spray, spray the edges as well. Set aside.

  • In a deep skillet, slowly cook sugar, corn syrup, and 1 cup of water on medium-high heat, stirring until the sugar dissolves. bring to a boil and continue cooking until the candy thermometer reaches the soft-ball stage (235°F), about 10 minutes.

  • Add in the peanuts and salt. Cook until the candy thermometer reaches the hard crack stage (300 to 310°F), stirring constantly, about 10 more minutes. (Pay attention to this part as the brittle will burn if cooked too long).

  • Remove from heat and add in the butter and baking soda; stir to blend. The mixture will bubble up.

  • Pour the brittle mixture onto the prepared cookie sheet and spread it out with a spatula and allow the brittle to cool for about 30 minutes until it’s cool to the touch.

  • Once cooled completely, slide a spatula underneath to lift the brittle up and break it into pieces. Store covered at room temperature.

Notes

  • Use a generous amount of cooking spray and be sure to coat the sides of the pan as well. You can also use parchment paper or a silicone mat, but DON’T use wax paper, which will melt.
  • Store in an airtight container at room temperature, it should keep for 2 months!

Nutrition

Calories: 219kcal | Carbohydrates: 36g | Protein: 4g | Fat: 8g | Saturated Fat: 1g | Cholesterol: 2mg | Sodium: 146mg | Potassium: 99mg | Fiber: 1g | Sugar: 34g | Vitamin A: 18IU | Calcium: 10mg | Iron: 1mg

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Old Fashioned Peanut Brittle Recipe (2024)

FAQs

Why didn't my homemade peanut brittle get hard? ›

The main reason why peanut brittle doesn't get hard and have the crunch we expect is because the sugar was not cooked long enough. The sugar needs to be cooked to what is called the hard crack stage, 300ºF.

What happens if you add more baking soda to peanut brittle? ›

In theory, it's a good idea, the baking soda adds some air to the caramelized sugar, making the sheets of candy more brittle, but it also introduces a minerally, metallic taste that's off putting to say the least.

Why did my peanut brittle not turn brown? ›

If your peanut brittle reached 311°F but is a pale milky color, it's likely the candy cooked too quickly. It reached the correct temperature but didn't cook long enough to undergo sufficient Maillard reactions and develop the characteristic brown color and rich, roasted flavor. Next time, cook at a lower temperature.

How do you keep peanut brittle crisp? ›

The candy will attract moisture from the air, making it unpleasantly sticky instead of shatteringly crisp. Once it's completely cool, transfer it to an airtight container.

Why is my peanut brittle still soft? ›

Didn't get it hot enough. You have to hit hard crack stage heat or it's not going to harden. From internet: Hard-Crack Stage is a cooking term meaning that a sugar syrup being heated has reached 149 – 154 C (300 – 310 F.) It is a test of how hot a sugar syrup is, and of how much water is left in it.

What makes brittle hard? ›

What Makes it Brittle? The sugar will be cooked to 300ºF (149ºC)—hard crack stage; which when set up would be hard like a lollipop. But peanut brittle is delicate and you can easily bite into it—how? The secret is in the baking soda.

Can you overcook peanut brittle? ›

If you overcook the brittle, it could be bitter or burnt. If you undercook it, the brittle won't properly set and the end result will be sticky. A thermometer is an accessible and inexpensive way to monitor temperature and ensure properly cooked brittle. Make sure your baking soda is fresh and active.

Why is my peanut brittle hard but sticky? ›

What's important to know is that the corn syrup controls the grain of the brittle so adding too little and you have a grainy textured brittle, while adding too much will result in a stringy and sticky brittle.

Can you use parchment paper when making peanut brittle? ›

You will want the cookie sheet to be non-stick. Use parchment paper, a silicone baking sheet or a greased cookie sheet. Spread the peanut brittle as thin as you can. Immediately add your sea salt.

How can you tell when peanut brittle is done without a thermometer? ›

However, if you don't have a candy thermometer, it's still possible to make this sweet. All you have to do to find out if your peanut brittle is ready to be removed from the heat is to drop a bit of the syrup into cold water and see if it forms brittle strands. If so, you're ready to finish up your confection.

Why is my peanut brittle so thick? ›

Not spreading the mixture thinly enough: If the peanut brittle is too thick (usually because you used too small of a pan), it may not cool and harden properly. Be sure to spread the mixture as thinly as possible in the pan. 4. Humidity: Humidity can affect the hardening process of the peanut brittle.

Does weather affect making peanut brittle? ›

I've learned that brittle is better when made on a cool, dry day. When I've made the candy on a warmer, humid day, it tends to be a stickier brittle. This is because the brittle takes longer to cool, and it reaches a point where it is no longer evaporating moisture into the air.

Should homemade peanut brittle be refrigerated? ›

Making Ahead, Storing and Freezing Peanut Brittle:

It stays fresh at room temperature for 6-8 weeks. To store: Once it's completely cooled, store peanut brittle in an airtight container at room temperature. Do not refrigerate as the moisture from the fridge will cause the brittle to soften.

What is the best pan for making peanut brittle? ›

Heavy 6 quart Dutch Oven pot. Mine is an old 1970's Club Aluminum. It's perfect! You need a heavy THICK pot so it won't scorch.

How to make peanut brittle hard again? ›

So, I Googled Salvaging Undercooked Peanut Brittle and followed Tiffany's helpful instructions to throw the pieces back in the pan, turn the heat up and stir, stir, and stir to a raging boil and wait to pour it in the pan until it reaches 300 degrees.

How long does it take for brittle to harden? ›

Don't try to spread the candy once it's on the baking sheet as it starts hardening almost immediately and spreading it doesn't work well. Let the peanut brittle cool for 30 minutes, then break it into pieces. Store it in an airtight container at room temperature for up to two months.

Is peanut brittle supposed to be hard? ›

Peanut Brittle is a smooth, flat candy (similar to toffee), with peanuts in it, that is cooked on the stovetop and poured onto a sheet pan to cool. Once it cools it's broken into small individual-size pieces of hard candy and lasts at room temperature for several weeks.

Why did my peanut butter fudge not get hard? ›

The main reason is that your Fudge has not reached the optimum temperature. If your mixture only reaches 110 or 112 degrees Celsius it will always be soft. That's why we recommend investing in a sugar thermometer. Another reason your Fudge is not setting is that the ratio of liquid to sugar is too high.

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